Well the cat is pretty much out of the bag on your questions:
I'd have to see a comprehensive list of things it does (or is capable of doing) and what it comes with (or doesn't) before I'd even say what I'd pay.
Think Xbox 360, now take away xbox live, and the ability to play DVDs now add a resistive touch screen controller roughly the size of a tablet that does not support multi- touch which allows for revolutionary game play and the ability to, on some games, turn off the tv and continue playing from your couch. Not its not a tablet, and its not a portable system, its just a touchscreen tethered to your wiiu
free online play could swing me to pay more
Probably free to play, all new online network that is going to piggyback off the one EA has, rumor has it.
including 2 controllers and a couple of games could swing me to pay more.
Not much info on this, but since the wiiu can only support ONE touchscreen controller, i am guessing it just ships with one touch screen controller. The thing also uses old wii controllers. I am guessing no game, or maybe some cheapo hardware demo type game like wii sports. There will probably be multiple options with multiple price points, with different memory options and peripherals I imagine.
an easily upgradable internal storage (hard drive with STANDARD connections not stupid ass proprietary connectors) could swing me to pay more. I'm not liking this internal memory/external sd card separation that goes on with the wii. they cheaped out with 512mb of flash memory then only later allowed save and game info to be saved to SD card. (slow as hell I might add)
Keep dreaming. Having properietary stuff makes your stuff harder to pirate and hack, and also saves nintendo from paying royalty fees.